Compound

The correct chemical formulae for "Calcium carbonate" is...

• CaCO₃

• CaO

• CaC

• CO₂

The type of compound made with reacting metal and non-metal is called...

• Ionic

• Covalent

• Metallic

• Noble

We know that carbon and oxygen are non-metals. By that information, we can know that carbon dioxide (CO₂) is a ... compound.

• Ionic

• Covalent

• Metallic

• Unique

Magnesium oxide is an ionic compound.

• True

• False

The correct compound name for BeS is...

• Beryllium sulphur

• Beryllium sulphate

• Beryllium sulphide

• Sulphurium beryllide

The amount of atoms in KOCN is...

• 1

• 2

• 3

• 4

The correct formula for "Dinitrogen pentoxide" is...

• N₂O₅

• N₂O

• NO₅

• NO

The amount of atoms in (NH₄)₂S is 8.

• True

• False

The correct scientific name for water molecule is...

• Hydrogen oxide

• Dihydrogen oxide

• Dihydrogen monoxide

• Hydrogen monoxide

Molecules below which has 9 atoms is...

• NH₄NO₃

• Mg(OH)₂

• KI

• AlPO₄